Title:
WORK MACHINE
Document Type and Number:
Japanese Patent JP2022086467
Kind Code:
A
Abstract:
To provide a work machine which has achieved low vibration by working an auxiliary energization force to a reciprocating plunger 20.SOLUTION: In a work machine which has a plunger 20 driven to reciprocate by a motor, and a tool holding part 90 capable of holding a tip tool 10 held by the plunger 20 and which performs work of cutting and the like when the plunger 20 is moving at least in a forward path (backward direction), an energization part 50 is provided which energizes the plunger 20 in the movement direction while the plunger 20 is moving in the forward path. The energization part 50 is constituted by a slide bearing 51 and a seal member 60 for generating pressure fluctuation, and generates a suction force by sealing the slide bearing 51 by the seal member 60 and making a negative pressure while the plunger 20 is moving in a return path.SELECTED DRAWING: Figure 2
Inventors:
HIRAI TAKAHIRO
Application Number:
JP2020198490A
Publication Date:
June 09, 2022
Filing Date:
November 30, 2020
Export Citation:
Assignee:
KOKI HOLDINGS CO LTD
International Classes:
B23D49/16
Attorney, Agent or Firm:
Aoritsu patent business corporation